<!DOCTYPE html>
<html>
<head>
<link rel="author" title="Sammy Gill" href="mailto:sammy.gill@apple.com">
<link rel="help" href="https://drafts.csswg.org/css-overflow-3/#overflow-control">
<link rel="help" href="https://drafts.csswg.org/css-grid-2/#track-sizing">
<link rel="match" href="/css/reference/ref-filled-green-100px-square-only.html">
<meta name="assert" content="overflow on a grid item does not cause it to establish an independent formatting context, and as a result does not prohibit subgrid">
<style>
.grid {
  display: inline-grid;
  grid-template: auto auto / auto auto;
  background-color: green;
}
.subgrid {
    grid-row: span 2;
    grid-column: 2;
    display: grid;
    grid-template-rows: subgrid;
    overflow: hidden;
}
.item {
    width: 50px;
    height: 50px;
}
</style>
</head>
<body>
<p>Test passes if there is a filled green square.</p>
<div class="grid">
  <div class="item" style="grid-row: 1;"></div>
  <div class="subgrid">
    <div class="item" style="grid-row: 2;"></div>
  </div>
</div>
</body>
</html>
